The Internet of Things (IIoT) offers unprecedented possibilities for industries. Stay ahead with EcoStruxure™ Plant and Machine.Learn more
...with the EcoStruxure™ Facility Expert (formerly known as Facility Hero) app in hand! Discover how you can optimize your maintenance efforts today.Learn more
Access tailored services, 24/7 self-service and expert help. Anywhere, anytime, any project.Discover now
The story behind the Shedd Aquarium, a smart, sustainable facility that connects people to animals, with EcoStruxure™.Discover how
Welcome to the Schneider Electric Global Website×
The arithmetic module only includes CEIL or FLOOR operations, no ROUND operation.
We can create one using an IF statement.
Let's say we want to round S1 to the closest integer. The function is:
How does it work?
Example: S1 = 12.7. The expected result for rounding is 13.
(CEIL(S1)+FLOOR(S1))/2 = 12.5
A test is done: if S1 is lower than (CEIL(S1)+FLOOR(S1))/2, it will return FLOOR(S1). If not, it returns CEIL(S1).
In the example, the test "12.7 < 12.5" is false, so the function returns CEIL(12.7)=13.
What happens in the 12.5 case?
The function is still correct. "<" means "strictly lower than".
So the test "12.5 < 12.5" is technically False, the function returns CEIL(12.5)=13, which is the expected result.
IF(S1<(CEIL(S1)+FLOOR(S1))/2,FLOOR(S1),CEIL(S1)) contains exactly 48 characters, which is the limit for the arithmetic module in the meters (limit is 249 in the VIP).
So rounding the S1-S8 inputs is OK, but rounding (S1+S2) or S1/1000 requires an additional arithmetic module.
Check the ION Reference for more details.
Last Revised: November 13, 2007
All content © 1992-2007 Schneider Electric
Sign up for all the latest solutions, offers and best practices straight to your inbox.
We are excited that you have joined the group. You will receive your welcome email soon describing the program and what to expect in the upcoming weeks. Enjoy!